Magnetic Resonance Angiography

• The first MR angiographic images were 2D and 3D time-of-flight (TOF) and had a low accuracy because of the tendency to often overestimate the lesion.

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Fig. 1.5.4. MR angiography of the same patient as in Fig. 1.5.2. Eighty percent stenosis of the ostium of the right ICA. Reconstruction of the Circle of Willis demonstrating an absence of the segment A1 of the left anterior cerebral artery

• More recently, 3D contrast-enhanced MR angiography increased confidence in MRA and shows a good correlation with conventional DSA for extracranial and intracranial vessels.

• MR imaging also permits the brain parenchyma to be visualized and thus shows the extent of the associated vascular lesions.

• MR diffusion imaging techniques are a unique window to see, very early after stroke, the cytotoxic oedema provoked by an ischaemic injury.

• MRA combined with MR diffusion and MR perfusion imaging has the advantage of giving the clinician a comprehensive analysis of the stroke in evolution and hints at its aetiology.

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Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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